//C12.8:placenew1.cpp -- new, palcement new, no delete
#include <iostream>
#include <string>
#include <new>

using namespace std;
const int BUF = 512;

class JustTesting
{
    string words;
    int number;
    public:
        JustTesting(const string & s = "Just Testing", int n = 0)
        {
            words = s;
            number = n;
            cout << words << " constructed\n";
        }
        ~JustTesting() 
        {
            cout << words << " destroyed\n";
        }
        void Show() const
        {
            cout << words << ", " << number << endl;
        }
};

int main(void)
{
    char * buffer = new char[BUF];    // get a block of memory
    JustTesting *pc1, *pc2;

    pc1 = new (buffer) JustTesting;        // place object in buffer
    pc2 = new JustTesting("Heap1", 20);    // place object on heap

    cout << "Memory block addresses:\n" << "buffer: "
         << (void*)buffer <<  "    heap: " << pc2 << endl;
    cout << pc1 << ": ";
    pc1->Show();

    cout << pc2 << ": ";
    pc2->Show();

    JustTesting *pc3, *pc4;
    pc3 = new (buffer)JustTesting("Bad Idea", 6);
    pc4 = new JustTesting("Heap2", 10);

    cout << "Memory contents:\n";
    cout << pc3 << ": ";
    pc3->Show();

    cout << pc4 << ": ";
    pc4->Show();

    delete pc2;          // free Heap1
    delete pc4;          // free Heap2
    delete [] buffer;    // free buffer
    cout << "Done\n";
}
